<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <style media="screen">
    * {stroke:red}
    </style>
  </head>
  <body>
    <svg width="800" height="600">
      <line x1="100" y1="100" x2="300" y2="300" stroke="black" stroke-width="20"></line>
    </svg>
  </body>
</html>
